WO2006122948A1 - Substance inerte a utiliser dans des reactions exothermiques - Google Patents

Substance inerte a utiliser dans des reactions exothermiques Download PDF

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Publication number
WO2006122948A1
WO2006122948A1 PCT/EP2006/062381 EP2006062381W WO2006122948A1 WO 2006122948 A1 WO2006122948 A1 WO 2006122948A1 EP 2006062381 W EP2006062381 W EP 2006062381W WO 2006122948 A1 WO2006122948 A1 WO 2006122948A1
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Prior art keywords
inert material
alumina
inert
material according
tablets
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PCT/EP2006/062381
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German (de)
English (en)
Inventor
Henrik Junicke
Heiko Urtel
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Basf Aktiengesellschaft
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Publication of WO2006122948A1 publication Critical patent/WO2006122948A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/34—Mechanical properties
    • B01J35/38—Abrasion or attrition resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/55—Cylinders or rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0292—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds with stationary packing material in the bed, e.g. bricks, wire rings, baffles
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
    • C04B35/111—Fine ceramics
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/15—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination
    • C07C17/152—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons
    • C07C17/156—Preparation of halogenated hydrocarbons by replacement by halogens with oxygen as auxiliary reagent, e.g. oxychlorination of hydrocarbons of unsaturated hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30215—Toroid or ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/302—Basic shape of the elements
    • B01J2219/30223—Cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/304—Composition or microstructure of the elements
    • B01J2219/30416—Ceramic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/30—Details relating to random packing elements
    • B01J2219/304—Composition or microstructure of the elements
    • B01J2219/30475—Composition or microstructure of the elements comprising catalytically active material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3218—Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/322—Transition aluminas, e.g. delta or gamma aluminas
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C04B2235/425—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/72—Products characterised by the absence or the low content of specific components, e.g. alkali metal free alumina ceramics
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Definitions

  • the invention relates to the use of alpha-alumina ( ⁇ -Al 2 O 3 ) in the form of hollow cylinders or ring tablets as inert material in exothermic reactions.
  • Inert materials are used in exothermic reactions in order to reduce the formation of so-called hot spots by heat removal.
  • the use of inert materials in exothermic reactions in a fixed bed is necessary because when using an undiluted catalyst at the beginning of the catalyst bed due to the high reaction rate, a large amount of heat is released.
  • the formation of hot spots should be avoided since they can adversely affect the selectivity of the reaction and also lead to a faster deactivation of the catalysts.
  • a catalyst bed with a graded activity profile is used, wherein the activity of the catalyst bed in the flow direction increases. This is usually achieved by providing the catalysts with a graded content of active components and optionally with selectivity promoters.
  • chemically inert materials eg. B. broken graphite, tabletted or extruded graphite powder, diluted (US-A-3184515, US-A-2866830).
  • inert materials are silicon carbide, silicon dioxide, aluminum oxides or glass, which are usually used in tablet, strand or spherical form.
  • inert diluent materials entails, as a significant disadvantage, an increased pressure loss, which has a negative effect, in particular in the case of shaped catalyst bodies which have a low-pressure loss, since it hinders material and heat transport in the axial direction.
  • the increased pressure loss also leads to a higher required compressor power, which reduces the maximum load capacity of the catalyst bed, which ultimately leads to a lower productivity of the reactor and has a limiting effect on the system capacity.
  • Too much dilution of the active component on the carrier material is also not favorable, as this greatly affects the onset of the reaction.
  • the use of unimpregnated catalyst support material is not advantageous. So z.
  • the gamma-alumina ( ⁇ -Al 2 O 3 ) commonly used in oxychlorination has a high active surface area and is not inert. This negatively influences the selectivity of the reaction.
  • the attenuation of the carrier activity by impregnation with alkali metals is z. As described in US-A-5202511, but leads to significantly higher cost of the inert material.
  • the object of the invention was therefore to provide an alternative inert material, which causes a lower pressure drop, so that the capacity of the system can be further increased.
  • the material abrasion should be kept low.
  • Ot-Al 2 O 3 in the form of hollow cylinders or ring tablets is used as the inert material.
  • the invention thus provides an inert material for use in exothermic reactions containing Ct-Al 2 O 3 in the form of hollow cylinders or ring tablets.
  • Subjects of the invention are also a process for the preparation of such inert materials and their use in exothermic gas phase reactions.
  • the inert material according to the invention contains Ct-Al 2 O 3 in the form of hollow cylinders or ring tablets.
  • the outer diameter (D A ) of the molded body is 1 to 20 mm, preferably 2 to 10 mm and particularly preferably 3 to 7 mm, in particular 4 to 6 mm.
  • ) of the shaped bodies advantageously has 0.1 to 0.7 times the outer diameter, preferably 0.3 to 0.7 times, and particularly preferably 0.35 - up to 0.55 times of the outer diameter.
  • the height (H) of the moldings advantageously represents 0.2 to 2 times, preferably 0.3 to 1, 8 times, more preferably 0.6 to 1.4 times the outer diameter.
  • the hollow cylinder or ring tablets have rounded, z. B. kalottêt
  • the radius of curvature of the end faces (R) is 0.01 to 0.5 times, preferably 0.05 to 0.4 times, and more preferably 0.1 to 0.2 times the outside diameter.
  • the hollow cylinder or ring tablets according to the invention advantageously have a shape in which the outer wall surface (outer edge) and the inner wall surface (edge of the inner hole) are arranged substantially flat and parallel to one another in cross-section.
  • the faces can be flat or rounded.
  • the end surfaces are continuously rounded so that - viewed along the inner hole - the catalyst body tapers both from the outer edge and from the edge of the inner bore ago. It can form a visible edge between the curvature of the end faces and the outer and the inner edge.
  • the inert material of the invention advantageously has a content of Cc-Al 2 O 3 of at least 50 wt .-%, preferably greater than 80 wt .-%, more preferably greater than 90 wt .-% and particularly preferably greater than 95 wt .-%, on ,
  • Other types of alumina such as, for example, delta-alumina (5-Al 2 O 3 ), theta-alumina (O-Al 2 O 3 ), ⁇ -Al 2 O 3 or pseudo-boehmite, may also be present in total of at most 50% by weight, preferably up to 20% by weight, more preferably up to 10% by weight and in particular not more than 5% by weight.
  • the inert material may also contain traces of other elements, such as Ti, Fe, Na and Si, which should then each lie at most in the 10 to 1000 ppm range.
  • the moldings according to the invention advantageously have a BET surface area of less than 50 m 2 / g, preferably less than 20 m 2 / g and particularly preferably less than 10 m 2 / g.
  • the lateral compressive strength of the inert materials according to the invention is advantageously at least 15 N, preferably 25 to 250 N, more preferably 50 to 200 N, the mechanical abrasion resistance advantageously less than 20 wt .-%, preferably less than 5 wt .-% and particularly preferably less as 2% by weight.
  • the determination of the lateral compressive strength is carried out as follows: The moldings are loaded between two parallel plates on the shell side with increasing force until breakage occurs. The registered when breaking the moldings Power is the lateral compressive strength. From a well-mixed sample 25 moldings are measured in this way and the average value determined.
  • the abrasion test is performed according to ASTM D4058-81.
  • the inventively formed inert materials can be obtained by tableting a high surface area ⁇ -Al 2 O 3 and / or 5-Al 2 O 3 and / or G-Al 2 O 3 with subsequent calcination at high temperatures. In this case, a conversion of the alumina modifications used in ⁇ -Al 2 O 3 .
  • the various forms of the aluminum oxide can be used pure or in any desired mixtures with one another.
  • the high-surface area Y-Al 2 O 3 , 5-Al 2 O 3 and G-Al 2 O 3 can also wholly or partially by further Aluminiumoxidmo-, such as chi-alumina ( ⁇ -Al 2 O 3 ) or compounds of the precursors of these aluminas, such as pseudo-boehmite, are replaced, which also convert after calcination into the desired Ot-Al 2 O 3 .
  • further Aluminiumoxidmo- such as chi-alumina ( ⁇ -Al 2 O 3 ) or compounds of the precursors of these aluminas, such as pseudo-boehmite
  • tabletting aids such as, for example, graphite or magnesium stearate
  • the various Tablettierzsstoff can be used purely or in any mixtures with each other.
  • the tabletting to the hollow cylinders or ring tablets described above is carried out in a known manner using the usual presses.
  • the pressing force is preferably more than 9 kN, more preferably between 9 and 11 kN.
  • the moldings are calcined at temperatures of preferably above 900 ° C., generally between 1000 and 2000 ° C., more preferably between 1000 and 1500 ° C., and especially at 1100 to 1400 ° C.
  • the calcination process is usually carried out for 0.5 to 10 hours, preferably for 1 to 2 hours.
  • the calcination can be carried out in an oxidizing or inert atmosphere, preferably working in an oxidizing atmosphere, generally in the air. Calcination can be done dormant or agitated.
  • the inert materials according to the invention are particularly suitable as a diluent for catalysts in exothermic reactions.
  • they are used in exothermic oxidation reactions, particularly preferably in Oxichlor michsrefrac of olefins and particularly preferably for the oxychlorination of ethylene to 1, 2-dichloroethane.
  • they can also be used advantageously, for example, in the preparation of acrylic acid, phthalic anhydride or maleic anhydride or else in the dehydrogenation of alkanes to alkenes, for example the reaction of propane to propene or butane to butene or butadiene.
  • a dry mix as described in B1 was made into ring tablets of dimensions 5mm x 5mm x 2.5mm (height x outside diameter x diameter of the inner hole) and end faces rounded equally to the outer edge and rim of the inner bore, the radius of the Curvature of the end faces (R) was 0.8 mm, tableted and then calcined at 1300 0 C for one hour.
  • the physical properties of the material are given in Table 1. Comparative Example C1
  • Graphite was formed into 5 mm x 5 mm tablets with sugar as a tabletting aid. Subsequently, the tool was burned out by calcination at 500 0 C.
  • the tablets of V1 were transferred to chippings of 1 to 3 mm in size.
  • Ring pellets were prepared according to B1, wherein the step of calcination at only 700 0 C was performed. Copper and potassium chloride (6% by weight Cu, 2% by weight K) were impregnated onto this support material after water absorption and dried at 120.degree. This represents a typical oxychlorination catalyst on ⁇ -Al 2 O 3 .
  • Ring pellets were made to B2, with the calcination step performed at only 700 ° C.
  • copper and potassium chloride (6 wt .-% Cu, 2 wt .-% K) were soaked in water absorption and dried at 120 0 C. This represents a typical oxychlorination catalyst on ⁇ -Al 2 O 3 .

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

L'invention concerne une substance inerte à utiliser dans des réactions exothermiques, laquelle substance contient de l'a-Al<SUB>2</SUB>O<SUB>3</SUB> sous forme de cylindres creux ou de pastilles annulaires. Cette invention concerne également un procédé pour produire des substances inertes de ce type ainsi que leur utilisation dans des réactions exothermiques en phase gazeuse.
PCT/EP2006/062381 2005-05-20 2006-05-17 Substance inerte a utiliser dans des reactions exothermiques WO2006122948A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005023955A DE102005023955A1 (de) 2005-05-20 2005-05-20 Inertmaterial für den Einsatz in exothermen Reaktionen
DE102005023955.2 2005-05-20

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WO2006122948A1 true WO2006122948A1 (fr) 2006-11-23

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012052199A1 (fr) 2010-10-21 2012-04-26 Ineos Europe Ag Système catalyseur comprenant des pastilles de catalyseur et des billes de diluant ayant des dimensions prédéfinies et des propriétés physico-chimique prédéfinies
WO2021260185A1 (fr) 2020-06-26 2021-12-30 Basf Se Support de catalyseur en alpha-alumine en forme de tablette
WO2022268348A1 (fr) 2021-06-25 2022-12-29 Basf Se Support de catalyseur alpha-alumine sous forme de comprimés de haute pureté
CN115996792A (zh) * 2020-06-26 2023-04-21 巴斯夫欧洲公司 压片α-氧化铝催化剂载体

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI642481B (zh) * 2013-07-17 2018-12-01 東楚股份有限公司 Catalyst system for the production of heterogeneous catalysts and 1,2-dichloroethane

Citations (8)

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Publication number Priority date Publication date Assignee Title
US4511671A (en) * 1982-09-06 1985-04-16 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for manufacturing methacrolein
US4656157A (en) * 1984-12-12 1987-04-07 Basf Aktiengesellschaft Molded catalyst for reactions carried out under heterogeneous catalysis
EP0393785A1 (fr) * 1989-04-18 1990-10-24 UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation) Catalyseur d'alkylène oxyde ayant une activité et/ou une stabilité modifiée
EP0461431A1 (fr) * 1990-06-09 1991-12-18 Degussa Aktiengesellschaft Catalyseur en forme de cylindre et son utilisation pour l'oxychloration de l'éthylène
US5145824A (en) * 1991-01-22 1992-09-08 Shell Oil Company Ethylene oxide catalyst
US5986152A (en) * 1997-11-24 1999-11-16 Degussa-Huls Ag Supported catalyst, process for its production as well as its use in the oxychlorination of ethylene
EP1053789A1 (fr) * 1999-05-21 2000-11-22 Evc Technology Ag Catalyseur et procédé d'oxychlorination l'utilisant
DE10313213A1 (de) * 2003-03-25 2004-10-07 Basf Ag Verfahren der heterogen katalysierten partiellen Gasphasenoxidation von Propen zu Acrylsäure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511671A (en) * 1982-09-06 1985-04-16 Nippon Shokubai Kagaku Kogyo Co., Ltd. Catalyst for manufacturing methacrolein
US4656157A (en) * 1984-12-12 1987-04-07 Basf Aktiengesellschaft Molded catalyst for reactions carried out under heterogeneous catalysis
EP0393785A1 (fr) * 1989-04-18 1990-10-24 UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation) Catalyseur d'alkylène oxyde ayant une activité et/ou une stabilité modifiée
EP0461431A1 (fr) * 1990-06-09 1991-12-18 Degussa Aktiengesellschaft Catalyseur en forme de cylindre et son utilisation pour l'oxychloration de l'éthylène
US5145824A (en) * 1991-01-22 1992-09-08 Shell Oil Company Ethylene oxide catalyst
US5986152A (en) * 1997-11-24 1999-11-16 Degussa-Huls Ag Supported catalyst, process for its production as well as its use in the oxychlorination of ethylene
EP1053789A1 (fr) * 1999-05-21 2000-11-22 Evc Technology Ag Catalyseur et procédé d'oxychlorination l'utilisant
DE10313213A1 (de) * 2003-03-25 2004-10-07 Basf Ag Verfahren der heterogen katalysierten partiellen Gasphasenoxidation von Propen zu Acrylsäure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012052199A1 (fr) 2010-10-21 2012-04-26 Ineos Europe Ag Système catalyseur comprenant des pastilles de catalyseur et des billes de diluant ayant des dimensions prédéfinies et des propriétés physico-chimique prédéfinies
WO2021260185A1 (fr) 2020-06-26 2021-12-30 Basf Se Support de catalyseur en alpha-alumine en forme de tablette
CN115996792A (zh) * 2020-06-26 2023-04-21 巴斯夫欧洲公司 压片α-氧化铝催化剂载体
WO2022268348A1 (fr) 2021-06-25 2022-12-29 Basf Se Support de catalyseur alpha-alumine sous forme de comprimés de haute pureté

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TW200700155A (en) 2007-01-01

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